FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

> From: Flickema, Drew W.
> Sent: Tuesday, December 21, 2004 7:53 PM
> 
> I am running stable version 0.62.4 on Debian (woody).  I have the
> unixODBC and unixODBC-dev packages installed.  I am attempting to
> connect to SQLserver 8.0
> 
> >From the {prefix}/bin directory I run tsql as 
> ./tsql -H db -p 445 -U sa
> 
> Here is the output
> 
> locale is "C"
> locale charset is "ANSI_X3.4-1968"
> Password:
> 
> And it hangs here forever after typing the correct
password.....finally
> will timeout and yield
> 
> Msg 20004, Level 9, State 0, Server OpenClient, Line 0
> Read from SQL server failed.
> Msg 20014, Level 9, State 0, Server OpenClient, Line 0
> Login incorrect.
> There was a problem connecting to the server

When you use "tsql -H", you bypass freetds.conf.  The library then has
no indication of what version of the TDS protocol to use for that
server, and falls back to the compiled-in default.  That default
(because you didn't set another, as a configure option) is TDS 5.0.
Microsoft servers do not TDS 5.0 speak.  

How the server responds to a (by its lights) malformed login packet
varies.  I guess in the case of SQL Server 2000, it simply doesn't
respond, not even closing the connection.  That would explain the delay
and timeout.  

The best and simplest answer is to create a proper freetds.conf entry.
Alternatively, you could set the TDSVER environment variable.  

I suppose eventually we should add a [-t tdsver] option to tsql.
Pending that, the user guide could be clearer on the point.  

HTH.

--jkl






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